Adjustable indicator.



J. H. RAND & J. H. RAND, JR.

ADJUSTABLE INDICATOR.

APPLICATION FILED APE. 29,1914.

1 1M 30 Patented Aug. 1111, MM.

UN %AE% @FFICE.

terms H. mm) AND JAMES Ramiro, an, OFNORTH ronawan'na, new YORK.

ADJUSTABLE INDIGA'I OR.

nieaeaa.

Specification. of Letters Patent.

Patenteddug. if, rare.

Application filed April 29, 1914. Serial No. $35,088.

the frame, especially when shifted several at a time up or down in the frame, and by which the strips are also looked individually in the frame against accidental dislodgment.

In the accompanying drawings which illustrate certain embodiments of the invention,Figure l is a face view of part of an indicator or index containing the invention; Fig. 2 is a perspective view of one of the indicator strips; Fig. 3 is a cross sectional view of the indicator shown in Fig. 1; and Figs. 4, 5, and 6 are cross sectional 'views of other forms of indicators containing the invention.

9 Referring first to Figs. 1, 2 and 3, A represents the frame of the indicator, which may be made of tin or other sheet metal,- and is rovided with flanges B, one at each side, forming inwardly facing guide channels for engaging the ends of the indicator strips- A pair of lengthwise extending ribs C are struck up, from the back of the frame, between and parallel to said guide channels, as shown.

The indicator strips or cards, formed of bristol .boardor other suitable material, are shown at I). Each indicator strip D is folded or bent over upon itself at each end, and the folded portions are held within said guide channels, which are of such height as to receive the'double thickness of the strips formed by the fold, with only sufficient clearance to allow. the strips to slide up and down freely in the frame for the purpose of adjustrnent. The length of each fold d is such that-it will make a reasonably close fit between the guide channel and the nearer of the two ribs 0, G, which furnish shoulders against which the endsof the folds d abut.

When inserting a strip intothe frame, the strip is buckled or shortened a little lengthwise, and. the folded ends inserted under the guide flange B, whereupon the strip will again spring out-flat into normal position with both ends held in the guide channels. V Vhen the strip thus assumes its normal positlon, the ends of the folds a? drop behind the ribs or shoulders C, and lock the strips against accidental dislodgment from the frame. Thefit of the folds d between the channels and the ribs is sufficiently free, however, so as not to bind, or interfere with the movement of the strips, one or many at a time, up and down in the frame. It will also be possible with this construction to remove the strips from the frame without damaging the strips, by using due care, but as the strips are commonly used for listing names, etc., and as they are rarely used after they are once removed, they may ordinarily be pulled out without regard tb breaking or damaging the folds (l which abut against the ribs C. It will be clear that the process of inserting the strips into the frame in no way endangers the strips or the folds d.

In Fig. 4 the shoulders or ribs C, O, are formed by bending or striking up a single broad section of the back of the frame instead of two separate narrow ridges as in Fig. 3. In Fig. 5, which illustrates a double faced indicator, the shoulders or ribs C C are formed of separate folded strips of sheet metal secured to the back of the frame. In other respects the construction and operation of the devices shown in Figs. 4 and 5 are substantially the sameas in Figs. 1 and 3.

In Fig. 6, the frame and the indicator strips are the same as already described excepting that no lengthwise extending ribs or shoulders are provided against which the ends of the folds of abut. In this form the advantages of the double thickness of the' strips at their ends, are attained in preventing the cards from slipping over one another or pilin up, when several strips of the series are shi ed up or down together; but the other feature of locking the strips individually in the frame is, of course, lacking.

We claim 1. An adjustable indicator comprisin a frame having flanges forming inwardly acing guide channels, and a series of indicator strips each of which is folded over upon itself at both ends, the folded portions being removablyheld in said guide channels and coiiperating with said flanges to prevent said strips from slipping over one another.

Ill?

2. An adjustable indicator comprising a coiiperating with the ends of the folds of 10 frame having flanges forming inwardly facthe strips to lock the strips in the frame. ing guide channels and also having a pair Signed at North Tonawanda, New York, of lengthwise extending ribs arranged be this 24th day of April, 1914.

5 tween and parallel to said guide channels, JAMES H. RAND.

and a series of indicator strips each of which JAMES H. RAND, JR. is folded back upon itself at both ends, the Witnesses: folded portions being held in said guide LAWRENCE H. GESER,

channels, and said lengthwise extending ribs EDWARD W. MESSING. 

